murray



'iEELDNG-ELECTRODE.

Specification of Letters Ietent.

Patented Mey 13, 1919.

Application flied March 22, wie. Serial Nc. 25%33336.

To all w'wm t may concern.

Ee it known that We, Teen/ies E. MURRAY, Jr., end esnrn B, ivenniii, citizens et" tlie United States, residing et roolilyn, in the county oi' Kings end State et New York, lieve invented a certain new and Useul linpreveinent in inleiding-Electrodes, of which the following is :i speciticetion.

The invention relates to Welcling electrodes censtructeti to receii'e the bodies te be Welded, end consists in 'the construction, iiei'einett r set forth, whereby the recess or oiLiening is provided with e removable metal lining, which iney rbe teken out when burnt er otherwise injured, und e. new one substituted. refeialily, seid lining consists oft e strip` of inetei seated et the edges et the opening or recess, since it is et seid edges that burning' er the electrode most commonly occurs. A

in the accompanying timwing- Figure l is e fece View of an electrode containing ein' protective linings. .Fig 2 is e section on the line 2. E ci: Fig'. l. Y

Similar letters 0I. reference indicatelike parte,

As 'lie two electrodes shown are exactly alike, s description ot` one applies to both. The bodies A, B to be welded are 1nere lengitudinai nella sec-tions et e cylinder, seid sections being respectively seeteel in the electroeles C, D. electrodes ere moreel t0- getliei in any suitable wey so te canse the edfes et' tlie sections fr, E to ineet, after which tire Weifiing current is established unite seni sec ie found that when. such eiectrocles I i i., ire inte@ Lal messes et metal, the 'wcleling current is apt to burn, 'enel so injure seid electrodes et the angles between their flut opposing sui-feces and the recesses receiving the bodies to be welded, We prevent this by removing the nietel of the electrode at this angle so to forni e shoulder, upon which we seet e metal strip E, which is reinoife'blif secured in place by screws F. Seid strip forms e partiel lining of the recess and conforms to the contour thereof. VJ lien any one of the strips ,E becomes burnefi or injured, it may be easily removed, and e new one substituted,

vWe cia-im:

l. in s. weldii electrode having e recess in which a body to be Welded fits, a removeble lining et' nietei in seid recess.

in a. Welding electrode leaving e, recess constructed to receive e body to be Welded, reinoif'e'ble linings of metal seated in the ledges ci' seid recess.

3. ln e Welding electiecie having :L recess constructefi. to receive body to be Welded, removable strips of inetel seated in the fece of said electrode enti registering with the conteur of said recess 51. ln a. Welding electr te having e c0ncere recess, lining extending over only e part of tlie concave surface, of Seid recess near the edge.

in testimony whereof we have aixecl our signatures in presence of two witnesses.

THOMAS E. MURRAY, .in

'iti'iesses Gne'rnUoe L?. Penses, Mer T. MGGARRY. 

